Plastic wheel assembly

Details Plastic wheel assembly Plastic wheel assembly

1994-11-14

1995-12-19

Buiz, Michael Powell

Endless belt power transmission systems or components

Friction drive pulley or guide roll

29892, F16H 5532

Patent

active

054764238

ABSTRACT:
Disclosed is a method of making a wheel assembly such as a pulley with a bearing. A wheel is molded from a material that shrinks when its temperature falls from a temperature above 100.degree. F. to room temperature. The wheel has a circular opening at its center suitable for holding a circular bearing. The diameter of the circular opening when the wheel is at a temperature above 100.degree. F. is greater than the diameter of the circular bearing and is less than the diameter of the circular bearing when the wheel is at room temperature. The bearing is positioned inside the opening when the wheel is at a temperature above 100.degree. F. The wheel is cooled to room temperature and shrinks around the bearing, thereby fixing the bearing to the wheel. Also disclosed is a wheel assembly made by this method.

REFERENCES:
patent: 4012961 (1977-03-01), Cameron
patent: 4025132 (1977-05-01), Watanabe
patent: 4025135 (1977-05-01), Hishida
patent: 4490128 (1984-12-01), Weiss et al.
patent: 4534749 (1985-08-01), Hans et al.
patent: 4571226 (1986-02-01), Molloy et al.
patent: 4767387 (1988-08-01), Matsuoka et al.

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